A cure for baldness may be available on the market sooner than
previously thought after a breakthrough in negotiations between
scientists and drugs companies.Scientists at the University of
Pennsylvania believe they have discovered the reason for baldness, an
enzyme which shuts down hair follicles.
Dr George Cotsarelis announced this week that he is in talks with
several pharmaceutical companies about developing treatments which
could be available in two years, Drugs that block the protein are
already available on the marked as they are used to treat asthma and
allergies.Dr Cotsarelis and his dermatological team at the University
of Pennsylvania, discovered that enzyme Prostaglandin D2 (PGD2)
prevented hair follicles from maturing.
The link between genetics and baldness have long been common knowledge
but not the cause.But when the team analysed the scalps of balding men,
they found levels of PDG2 to be three times higher in areas in which
the hair was thinning.
Earlier work by the same team found bald men have cells capable of making hair; they have just failed to mature.
It is thought that PGD2 prevents the cells maturing – and stopping it
from working would allow hair to grow again.In tests on lab and on
mice, the compound stunted hair growth, the journal Science
Translational Medicine reported in March.
‘Blockers’ of the enzyme have been formulated as pills to cure asthma
and allergic conditions but it should be possible to turn them into a
lotion which could be applied to the scalp.
Dr Cotsarelis, said: ‘The nice thing about dermatology and hair loss in
general is that you can take compounds that maybe are being used as a
pill and put them in a topical formulation.
‘We certainly think it would be good at preventing hair loss but we don’t know for sure that it would regrow.’
Lab test suggest the treatment may also help women who are losing their
hair.Female hair loss carries an even greater stigma than the male
condition, but is not as uncommon as many people may believe.About 40
per cent of women suffer from some form of hair loss as a result of
hormone changes during menopause.
For men this number is significantly higher according to Dr
Cotsarelis.By the age of 50 nearly half of all men have some degree of
male pattern baldness, a number which rockets to 70 per cent by the age
of 70.Dr Cotsarelis said: ‘We think these findings will have
implications beyond male pattern baldness but, even if they don’t, we
think it will be exciting.
‘There is a large number of people who would rather have hair than
not.’If developed the drug would revolutionise the hair regrowth
market.Britain’s 7.4million bald and balding men have limited options
of cures for their conditions.
Hair transplants are painful and expensive and success is variable.The
only two drugs available have high-risk side effects. Testosterone
blocker Propecia may cause impotence and a second drug, Amexidil, which
increase blood flow to the hair follicles could in fact accelerate hair
loss.
Other treatments in development elsewhere include a jab that uses fat
cells from the tummy to pep up hair growth on the scalp. Cotsarelis’
team said that the new drug could be on the market in as little as two
years.
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